JP3123096B2 - Stopwatch device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

TECHNICAL FIELD The present invention relates to a stopwatch device.

[0002]

2. Description of the Related Art In a car race or the like, every time a participating car makes a round of a course, each time an operation switch (hereinafter referred to as a lap switch) is operated as a tool for measuring a required time (hereinafter referred to as a lap time), the previous time is used. 2. Description of the Related Art There is known a stopwatch device in which an elapsed time from the operation of a lap switch, that is, a lap time can be known. However, in order to measure the lap time with such a conventional stopwatch device, it is necessary to operate the lap switch and wait for the race car to be measured to go out of sight and come back into view again now or now. However, there was an inconvenience that tension was continued and fatigue was easily felt.

[0003] In order to measure the lap time with more margin, the applicant of the present invention, when measuring the lap time, drives the pointer so that the pointer makes one revolution with the lap time obtained at that time. In view of the above, the present inventor has devised and applied for a stopwatch device which can give an approximate indication of the measurement time of the next lap time (Japanese Utility Model Application No. 2-87).
94).

[0004]

2. Description of the Related Art The above-mentioned stopwatch device has a certain effect and can be conveniently used. For example, when a guideline of the lap time is displayed so that the pointer makes one revolution at the previous lap time, If the movement of the next measurement target becomes extremely slow and the lap time becomes much longer than the previous lap time, the indication of the guideline which is to be a guide is no longer meaningful and is effective. Can no longer be used. In a car race or the like, a target standard lap time is determined in advance, and an effort is made to go around the course within the standard lap time. Therefore, it is very convenient if the deviation of how fast or slow the standard lap time can be easily known.

[0005]

It is an object of the present invention to provide a stopwatch device which provides a display so that the measurement point of the next lap of a measurement object can be measured, and which allows the user to know the difference between the movement time of the measurement object and the standard lap time. The purpose is to:

[0006]

SUMMARY OF THE INVENTION In order to achieve the above object, the present invention drives the first hand to make one revolution in the previous lap time and the second hand to make one revolution in the standard lap time. Alternatively, the gist is that one hand is driven so as to make one revolution in the time selected from the last lap time or the standard lap time.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below in detail with reference to the drawings. FIG. 1 is a block diagram showing a main part of the stopwatch device of the present invention. In FIG. 1, the stopwatch device includes a microprocessor unit (MPU) 1 having a CPU, a ROM, an input / output port, a clock generator, and the like.
1 is connected to a RAM 2 via a bus. Also,
The output of the key input unit 3 is input to the MPU 1, and the output of the oscillation circuit 4 is frequency-divided by the frequency divider 5 into a signal of 32 Hz, and this signal is input to the MPU 1. The MP
The signal from the output port of U1 is input to the display drive circuit 6, and the output of the display drive circuit 6 allows the digital display unit 7
Are driven.

Signals from the other two output ports of the MPU 1 are input to a minute hand driving step motor A driving circuit 8 and an hour hand driving step motor B driving circuit 9, respectively. The output drives the step motor A10. The torque of the step motor A10 is transmitted to the minute hand 12 via the wheel train mechanism 11. When the step motor A10 is driven by 180 steps, the minute hand 12 makes one revolution. Then, the output of the step motor B drive circuit 9 drives the step motor B 13, and the rotational force of the step motor B 13 is transmitted to the hour hand 15 via the wheel train mechanism 14. When the step motor B13 is driven by 180 steps, the hour hand 15 makes one revolution.

The ROM of the MPU 1 stores the minute hand 12, the hour hand 15,
A program for controlling the digital display unit 7 and the like is written.

The key input section 3 includes push-button keys SM and S
The key SM is a mode selection key. Each time the key SM is operated, the time mode and the stopwatch mode are alternately selected. A key S1 is a key for starting / stopping measurement in the stopwatch mode, and a key S2 is a key for measuring a lap time of a measurement target in the stopwatch mode. The keys S3 and S4 are keys for setting and changing the standard lap time. The key S3 can increase the standard lap time set value, and the key S4 can decrease the standard lap time set value.

FIG. 2 shows the structure of the RAM.
The mode register M is a register for storing a mode,
When 0 is stored, the clock mode for displaying the current time is designated by the minute hand 12 and the hour hand 15, and when 1 is stored, the stopwatch mode for measuring time is designated as a stopwatch. Time storage register B
T is a register for storing the current time, which is 1/3 in synchronization with a 32 Hz signal input from the frequency divider 5 to the MPU 1.
Two seconds are added.

The minute hand current position storage register ATP stores the minute hand 1
The minute hand 12 makes one revolution in 180 steps as described above. That is, it is configured to move the one-minute scale in three steps, and the numerical value of 0 to 179 is stored with the position at 12:00 being 0. The hour hand current position storage register BTP is a register for storing the position of the hour hand 15, and the hour hand 15 makes one revolution in 180 steps as described above. That is, the scale of one minute is moved in three steps, and the values at 0 to 179 are stored with the position at 12:00 as 0. The minute hand movement position storage register ANP is a register in which the movement position is set with a numerical value from 0 to 179 when the minute hand is to be moved. The hour hand movement position storage register BNP is a register in which the movement position is 0 to 179 when the hour hand is to be moved. This register is set with the value of.

The register LTA is a register for storing data relating to the last lap time to be measured in the stopwatch mode, and the register LTB is a register for storing data relating to a preset standard lap time. The register LPA is a register used to detect the timing of moving the minute hand 12 in the stopwatch mode, and the register LPB is a register used to detect the timing of moving the hour hand 15 in the stopwatch mode.

The measurement start / stop flag register FR is a flag register that is set to 1 during measurement in the stopwatch mode, and is set to 0 during non-measurement. The measurement time storage register ST stores the measurement time in the stopwatch mode. Is a register for storing. Register FAS indicates minute hand 1 in stopwatch mode.
Minute hand 12 during simulation of previous lap time at 2
Is a register which is set to 1 when it comes to the 12 o'clock position. The register FBS is set to 1 when the hour hand 15 comes to the 12 o'clock position while simulating the standard lap time with the hour hand 15 in the stopwatch mode. Register. The register FAZ is set to 1 when the key S2 is operated and the next lap is taken before the minute hand 12 comes to the 12 o'clock position during the simulation of the previous lap time with the minute hand 12 in the stopwatch mode, and the minute hand 12 is set. Is a register which is set to 0 when the minute hand 12 is fast-forwarded and reaches the 12 o'clock position in order to display the next lap time. The register FBZ is used to simulate the standard lap time with the hour hand 15 in the stopwatch mode. When the key S2 is operated and the next lap is taken before the time 15 comes to the 12 o'clock position, 1 is set when the next lap is taken. Is a register that is set to 0 when it arrives.

The lap number storage register I is a register for storing the number of laps to be measured in the stopwatch mode, that is, a register for storing the number of times the key S2 has been operated after the start of measurement. Lap time storage units MA _{1 to} MA ₂₀
Is a register for storing the lap times from the first time to the 20th time of the measurement object.

FIG. 3 is a general flowchart of the operation of this embodiment. In the figure, the CP in the MPU 1
U completes the execution of a predetermined initialization routine, and starts executing the program shown in the general flowchart. In this routine, the CPU is always in a standby state (step S1), and the key input unit 3
Is performed, the key processing routine of step S8 (flow 5) and the digital display section display processing routine (step S9) are executed, and the process returns to step S1. Further, the signal of 32 Hz from the frequency dividing circuit 5 is
Every time the time is input to the timer (step S
Perform 2). Here, the current time is updated by adding 1/32 seconds to the time storage register BT that stores the current time. Next, in step S3, it is determined whether or not the value of the data of the mode register M for mode identification (hereinafter simply referred to as the value of the register M) is 0 and the watch mode is set, and if the value of the register M is 0, The watch mode / motor drive processing routine (flow 2) in step S4 is executed, and the process proceeds to step S5.

On the other hand, when it is determined in step S3 that the value of the register M is not 0, the process proceeds to step S5. In step S5, it is determined whether or not the value of the register M is 1 and a stopwatch mode is set. When the value of the register M is not 1, the process branches to step S9, and when the value of the register M is 1, the stopwatch process routine (flow 3) of step S6 and the stopwatch mode motor drive process routine of step S7 (flow 3) After executing the flow 4), the process proceeds to the step S9. In step S9, the current time of the register BT is displayed in the clock mode (M = 0), and the measured time of the measured time storage register ST is displayed in the stopwatch mode (M = 1).

FIG. 4 is a flow chart showing the details of the watch mode motor drive processing of flow 2. First, in step S10, it is determined whether or not the minute hand position corresponding to the minute unit of the current time does not match the contents of the minute hand current position storage register ATP. If they match, the process proceeds to step S15, and if they do not match, step S11
Execute In step S11, the step motor A for driving the minute hand is driven by one step. Next, the process proceeds to step S12, where 1 is added to the contents of the register ATP. The minute hand 12 and the hour hand 15 are rotated 180 steps (0 to 17).
In step S13, it is checked whether or not the register ATP has reached 180.
If the register ATP is not 180, the process proceeds to step S15. If the register ATP is 180, the process proceeds to step S14.
Set.

In step S15, it is determined whether or not the hour hand position corresponding to the hour unit of the current time does not match the contents of the hour hand current position storage register BTP. If they match, the process of the flow 2 ends. If they do not coincide with each other, step S1 is performed similarly to the control of the minute hand 12.
Step 6 is performed to drive the step motor B for driving the hour hand one step. Then, the process proceeds to a step S17, where 1 is added to the contents of the register BTP. Next, step S1
At 8, it is checked whether or not the register BTP has become 180. When the value of the register BTP is not 180, the process of the flow 2 is terminated. The register BT
If P is 180, 0 is set in the register BTP in step S19, and then the processing of this flow 2 ends. Therefore, when the minute hand 12 and the hour hand 15 do not point to the current time in the clock mode, the minute hand 12 and the hour hand 15 are fast-forwarded at 32 Hz until the minute hand 12 and the hour hand 15 point to the current time.

FIG. 5 is a flowchart showing the details of the key processing of flow 5. Each time the mode selection key SM is operated, the operation modes of the clock mode and the stopwatch mode are alternately switched. First, in a step S40, it is determined whether or not the key SM is operated.
If the key SM has not been operated, the flow advances to step S41 to determine whether or not the value of the register M is 1. When the value of the register M is not 1, the watch mode is set, so that key processing such as time setting in this mode is executed in step S73, and the processing of the flow 5 is terminated.

In step S40, the key SM
Is operated, the flow advances to step S42 to determine whether or not the value of the register M is 0. That is, it is determined whether the previous mode is the clock mode or the stopwatch mode. If the value of the register M is 0, the process proceeds to step S43, and 1 is set in the register M.
44, enters the stopwatch mode initial processing, and stores the stopwatch measurement time storage register ST and measurement start / stop.
The stop flag register FR, the minute hand movement position storage register ANP, and the hour hand movement position storage register BNP are each set to 0. Thereafter, the processing of the flow 5 is terminated. If the value of the register M is not 0 in the step S42, the process proceeds to a step S45, where the register M is set to 0, the watch mode is set, and the processing of the flow 5 is ended.

When the value of the register M is 1 in the step S41, the key processing in the stopwatch mode is performed. In a step S46, it is determined whether or not the key S1 in the key input section 3 is operated. In the stopwatch mode, the key S1 is a key for controlling the start / stop of the measurement. When the key S1 is operated, the process proceeds to step S47, where it is determined whether or not the register FR is 0, that is, whether the lap time is being measured. Check whether or not. Step S if the flag register FR is 0 and non-measurement is being performed.
At 48, the measurement start / stop flag register F
Start by setting R to 1 and then step S4
9 is executed. In step S49, the register LTA,
The register LPA, the register LPB, the lap number storage register I, the register FAZ, the register FBZ, and the register FBS are set to 0, respectively, and the flag register FAS is set to 1, and the process of the flow 5 is completed. If the value of the register FR is not 0 and the measurement is being performed in step S47, it means that the end has been requested, so that in step S50 the register FR is set to 0 to stop the measurement. The processing of 5 is ended.

If the key S1 has not been operated in step S46, it is determined in step S51 whether the lap measurement key S2 in the key input section 3 has been operated. If the key S2 has not been operated, the process proceeds to step S68. If the key S2 has been operated, it is checked in step S52 whether the value of the register FR is 1, that is, whether the lap time is being measured. If the key S2 is operated during non-measurement, it is an erroneous operation, and the processing of the flow 5 is terminated without doing anything thereafter.

If the key S2 is operated during the measurement, the lap number storage register I for the object to be measured is incremented in step S53. Next, in step S54, it is checked whether or not the register I is 1, that is, whether or not it is the first lap after the start. If the value of the lap number storage register I is determined to be 1 in step S54, the lap time is equal to the measurement time of the measurement time storage register ST because the lap is the first lap. The value of the register ST is written in the register LTA to be stored, and the flow advances to step S56. Step S5
If it is determined in step 4 that the value of the register I is not 1, the process proceeds to step S57, in which the lap times measured so far (up to the (I-1) th time) are read from the lap time storage unit MA, and the sum thereof is obtained. Then, the current lap time is obtained by subtracting the sum of the lap times up to now from the measured time of the register ST, and the obtained lap time is written in the register LTA, and the process proceeds to step S56.

The save transferred last lap time written in the register LTA in the step S56 step S55 or step S57 to the times of the storage area of the lap time memory unit MA _I. Next, at step S58, it is determined whether or not the value of the register FAS is 0. The register F
If AS is 0, write 1 to the flag register FAZ that identifies whether the key S2 of the key input section is operated and the next lap is taken before the minute hand points to the 12 o'clock position in step S59. Proceed to step S61.
On the other hand, when the register FAS is not 0, that is, when the minute hand 12 is at the 12 o'clock position, the register FAS is set to 0 in step S60, and the process proceeds to step S61. In this step S61, 0 is set in the register LPA. Thereafter, in step S62, the register AN
P is set to 0, and the process proceeds to step S63.

In and after step S63, a process for adjusting the hour hand 15 is performed in relation to the standard lap time and the operation of the key S2. That is, in the step S63, it is determined whether or not the register FBS is 0. That is, the key S
It is determined whether or not the hour hand 15 points to the 12 o'clock position when the button 2 is operated. Since the fact that the register FBS is 0 means that the key S2 is operated after the hour hand points to the 12 o'clock position, the register FBZ is set to 0 in step S64, and then the process proceeds to step S66. .

On the other hand, if the value of the register FBS is not 0 in step S63, the key S2 is operated before the hour hand points to the 12 o'clock position.
In step 4, 0 is set in the register FBS, and in step S
Proceed to 66. In step S66, 0 is set in the register LPB.
NP is set to 0, and the processing of the flow 5 ends.

In step S68, the key input unit 3
It is determined whether or not the standard lap time setting / change key S3 has been operated. If the key S3 has not been operated, the process proceeds to step S71. If the key S3 has been operated, the value of the register FR is checked in step S69 to determine whether or not the lap time is being measured. Is operated, it is determined that the operation is erroneous, and the processing of the flow 5 is terminated without performing any operation. And key S3 during measurement
Is operated, the process proceeds to step S70, the register LTB for setting the standard lap time is incremented, and the process of the flow 5 ends. Step S
If the result of the determination in 68 is that the key S3 has not been operated, it is determined in a step S71 whether or not another key S4 for setting / changing the standard lap time has been operated. If the key S4 has not been operated, another key processing is performed in step S72, and the processing of the flow 5 ends. When the key S4 is operated, it is checked in step S73 whether or not the lap time is being measured from the value of the register FR in the same manner as when the key S3 is operated.
Is operated, it is determined that the operation is erroneous, and the processing of the flow 5 is terminated without performing any operation. If the key S4 is operated during the measurement, the process proceeds to step S74, in which the register LTB for setting the standard lap time is decremented, and the processing of the flow 5 is terminated.

FIG. 6 is a flowchart showing the details of the stopwatch processing of the flow 3, which is executed in the stopwatch mode. In this flow, first, in step S100, it is determined whether or not the content of the measurement start / stop flag register FR is 1. Register FR
If is not 1, the lap time is not being measured, and the process of flow 3 ends without performing any operation. If the register FR is 1, 1/32 seconds is added to the measured time storage register ST in step S101, and the process proceeds to step S102.
In step S102, it is determined whether or not the content of the register LTA is not 0, that is, whether or not the lap to be measured has been measured once. If the register LTA is 0, the lap has not yet been measured for the object to be measured, so the process proceeds to step S110. If the value of the register LTA is not 0, it is determined in step S103 whether the content of the register FAS is 0. That is, it is checked whether or not the minute hand has pointed to the 12 o'clock position. When the register FAS is not 0, that is, when the minute hand points to the 12 o'clock position, the process proceeds to step S110 so that the minute hand is not advanced any further.
If AS is 0, at step S104 the register LP
Add 1/32 seconds to the value of A data. Next, in step S105, the cycle of one step when the value of the data of the register LPA makes one round of the minute hand 12 in the previous lap time, that is, 1/18 of the value of the data of the register LTA.
It is determined whether it is greater than 0 (LTA / 180). That is, 1 is added to the fraction remaining in the register LTA.
It is checked whether the cycle of one step has been exceeded by adding / 32 seconds. If not larger, the above step S11
If the value is larger than 0, the value is subtracted from the data value of the register LPA in step S106. afterwards,
In step S107, the register ANP is incremented, and in step S108, it is determined whether the value in the register ANP has reached 180. If it is not 180, the process proceeds to step S110. If it is 180, 0 is set in the register ANP in step S109, and the process proceeds to step S110.

Steps S110 to S117 are the stopwatch processing relating to the standard lap time by the hour hand 15, and are basically the same as the stopwatch processing of the previous lap time of steps S102 to S109 described above. That is, in step S110, it is determined whether the content of the register LTB is not 0. If the register LTB is 0, the process of the flow 3 is terminated. If the register LTB is not 0, it is determined whether or not the content of the register FBS is 0 in step S111. When the value of the register FBS is not 0, the process of the flow 3 is terminated. When the value of the register FBS is 0, 1/32 seconds is added to the data value of the register LPB in step S112. Next, in step S113, the data value of the register LPB is
Is greater than 1/180 of the value of the data. If it is not larger, the process of flow 3 is terminated. If it is larger, the value is stored in the register L in step S114.
Subtract from the value of PB data. Then, step S11
In step 5, the register BNP is incremented, and in step S116, it is determined whether the value in the register BNP has reached 180. If it has not reached 180, the process of flow 3 ends.
At step 17, 0 is set in the register BNP, and the process of flow 3 is completed.

FIG. 7 is a flowchart showing the details of the stopwatch motor driving process of flow 4. This flow 4 is executed in the stopwatch mode. In step S20, it is determined whether or not the contents of the minute hand movement position storage register ANP match the contents of the minute hand current position storage register ATP. If they match, the process branches to step S28. If they do not match, the process proceeds to step S21, and the step motor A for driving the minute hand is driven by one step. Subsequently, in step S22, the content of the register ATP is incremented. Then, the process proceeds to a step S23, wherein it is determined whether or not the numerical value of the data in the register ATP is 180. If it is not 180, the process goes to step S28.
When it is 180, the content of the register ATP is set to 0 in step S24, and
Proceed to. In step S25, the minute hand 12
A flag register FA for identifying whether the key S2 was operated and a lap was taken before the pointer pointed to the 12 o'clock position.
It is determined whether or not the content of Z is 1. This register FAZ
Is not 1, the process proceeds to step S26, where the flag register FAS for identifying whether or not the minute hand has pointed to the 12 o'clock position within the previous lap time for the measurement target is set.
Is set to 1. Next, the process proceeds to step S28. On the other hand, when the content of the register FAZ is 1, 0 is written to the register FAZ in step S27.

Steps S28 to S35 are controls of the hour hand 15 indicating the standard lap time for the lap to be measured, and the same processing as in the steps S20 to S27 is performed. In step S28, it is determined whether or not the contents of the hour hand movement position storage register BNP match the contents of the hour hand current position storage register BTP.
If the two match, the process of flow 4 ends,
If they do not match, the process proceeds to step S29,
The step motor B for driving the hour hand is driven one step. Subsequently, in step S30, the content of the register ATP is incremented. Then, the process proceeds to a step S31, wherein it is determined whether or not the numerical value of the data in the register BTP is 180. If it is not 180, the process of flow 4 is ended. If it is 180, the content of the register BTP is set to 0 in step S32, and the process proceeds to step S33. In step S33, before the hour hand 12 points to the 12 o'clock position, it is determined whether or not the content of the flag register FBZ for identifying whether or not the key S2 has been operated and a lap has been taken is 1. This register F
If the content of BZ is not 1, the process proceeds to step S34, where 1 is set in the flag register FBS for identifying whether the hour hand 15 has pointed to the 12 o'clock position within the previous lap time for the measurement object, and the flow 4 Is completed. On the other hand, when the content of the register FBZ is 1, 0 is written to the register FBZ in step S35, and the processing of the flow 4 is terminated.

FIG. 8 is a schematic diagram showing processing in the stopwatch mode. When the stopwatch mode is selected with the key SM, the minute hand and the hour hand move to the 12 o'clock position, and the digital display unit 7 displays the data of the measurement time storage register ST, that is, 0. When the key S1 is operated at the start of the race, the measurement starts.

After the start, if the standard lap time is stored in the standard lap time storage register LTB, a drive pulse is supplied to the hour hand driving step motor B at a period of LTB / 180 hours, and the time hand is driven at the LTB time (180 pulses). The hour hand is driven to make one revolution. On the other hand, when no lap has been measured yet, the minute hand for displaying the previous lap has stopped. The digital display unit 7 displays the elapsed time from the start of the measurement time storage register ST.

If the lap is not measured after LTB (standard lap) time has elapsed since the start, the hour hand comes to the 12 o'clock position, which is detected in step S31 of the stopwatch motor driving process, and Is set to the register FBS that stores that the position has arrived.

Thus, in step S111 of the stopwatch process, it is detected that the register FBST is 1 and the hour hand has reached the 12 o'clock position, and steps S112 to S112 are performed.
Since the process of moving the hour hand in step S117 is not started, the hour hand is stopped at the 12 o'clock position. key S after time e
Operate 2 to measure the first lap time of the measurement target. Then, the minute hand driving step motor A has a / 18
A drive pulse is supplied in a cycle of 0 hours, and a time (180 hours)
(Pulse), the minute hand is driven to make one revolution, and the indication of the second lap of the measurement object is displayed.

On the other hand, the hour hand is set to LT
It is driven so as to make one round in B time. When the key S2 is operated, the registers FAS and FBS storing that the minute hand and the hour hand have reached the 12 o'clock position are set to 0 in steps S60 and S65 of the key processing of the flow 5, respectively.

From the first lap, b (b <a,
After the time of b <LTB), the key S2 is operated again, and the second lap is measured. That is, if the second lap time is shorter than the first lap time and shorter than the standard lap time, the minute hand during the simulation of the first lap time and the hour hand during the simulation of the standard lap time become 1
Before coming to the 2 o'clock position, key S2 is operated. Therefore,
In step S58 of the key processing of flow 5, it is detected that the key S2 is operated before the minute hand reaches the 12 o'clock position,
The register FAZ is set to 1, and the operation of the key S2 is detected before the hour hand reaches the 12 o'clock position in step S63, and the register FBZ is set to 1.

Thereafter, a drive pulse is supplied to the minute hand driving step motor A at a cycle of b / 180 hours, and the minute hand is driven so as to make one revolution in the b time, thereby displaying an indication of the third lap. LTB /
A drive pulse is supplied in a cycle of 180 hours, and the hour hand is driven so as to make one revolution in the LTB time, thereby indicating a standard lap indication.

In this case, since the minute hand and the hour hand are not at the 12 o'clock position at the start, a short-cycle drive pulse is supplied to the minute hand driving step motor A and the hour hand driving step motor B to correct the time. That is, when the key S2 is operated, steps S62 and S67 of the key processing of the flow 5 are performed.
Then, 0 is set as the movement position data in the minute hand movement position storage register ANP and the hour hand movement position storage register BNP.

Thus, in step S20 of the stopwatch motor driving process of flow 4, it is determined that the data in the minute hand current position storage register ATP and the minute hand movement position storage register ANP are different, and the minute hand moving process in step S21 is performed. If it is determined in step S28 that the data in the hour hand current position storage register BTP is different from the data in the hour hand movement position storage register BNP, an hour hand drive process in step S29 is performed. Stopwatch motor drive processing is 1
/ 32 seconds, the minute hand 12 and hour hand 15
It will be fast-forwarded at a cycle of 32 seconds. The minute hand comes to the 12 o'clock position at the end of or during the rapid traverse, which corresponds to step S31 of the stopwatch motor driving process.
In this case, the register FA stores the fact that the next lap was measured before the minute hand reached the 12 o'clock position.
Since Z is 1, this is detected in step S33 and the register FAZ is kept at 0 while the register FAZ is kept at 0.
Is only set to 0, so that the minute hand does not stop when it comes to the 12 o'clock position. Similarly, the hour hand is L
When the timing of every TB / 180 hours elapses, the hour hand movement position storage register BNP is incremented by one, and this time is also fast forwarded. The hour hand comes to the 12 o'clock position at the end of or during the rapid traverse, and this is detected in step S63 of the stopwatch motor driving process in flow 4. In this case, before the hour hand comes to the 12 o'clock position, Since the register FBZ that stores the measurement of the next lap is 1, it is detected in step S33, and the register FBZ is merely set to 0 while the register FBS is kept at 0. It does not stop when it comes to the hour position. In the above description, a timepiece provided with a minute hand and an hour hand has been described. However, if the present invention is applied to a timepiece provided with a second hand, the measured time can also be displayed by hands.

FIG. 9 is a flowchart showing details of key processing in another embodiment of the present invention. In this embodiment, the hour hand indicates the number of laps. That is,
From 1 o'clock to 12 o'clock is associated with 1 to 12 times, from 1 o'clock to 1
The time until 0 o'clock is associated with 13 to 20 times, for example, by making the color different from the index indicating 1 to 12 times.
The minute hand allows the lap time to be measured and the standard lap time to be selected by operating the key S5, and a register N for discriminating whether to newly select the lap time to be measured or the standard lap time is set. Provided. And
When the value of the register N is 1, the lap time to be measured is displayed on the minute hand, and when the value of the register N is 0, the standard lap time is displayed on the minute hand. Also,
The registers FBS and FBZ used in the above embodiment are not used. In the key processing, steps S40 to S48 are the same as those in the above embodiment. Step S
At 48, the measurement start / stop flag register FR is set to 1 and started, and then at step S80, 0 is set to the register LTA, the register LPA, the register LPB, the lap number storage register I to be measured, and the register FAZ. . Next, in step S81, it is checked whether the value of the register N is 0. N = 0, that is, a mode in which the standard lap time is displayed on the minute hand.
At 82, 0 is set in the register FAS, and the key processing ends. When N = 1, that is, in the mode in which the last lap time of the measurement target is displayed on the minute hand, 1 is set in the register FAS in step S83, and the key processing is ended.

Whether the key S5 has been operated or not is determined in step S84 between steps S71 and S72. If the key S5 has not been operated, step S7 is performed.
Proceed to step 2 to perform other key processing and then end the key processing.
If the key S5 has been operated, the register FR for discriminating whether or not the lap is being measured is checked in step S85.
If the register FR is not 0, that is, if the operation is performed while the measurement is not being performed, it is determined that the operation is erroneous, and the key processing is terminated without doing anything. If the value of the register FR is 0, that is, if the register FR is operated during measurement, the key processing is completed by inverting (CPL) the 1 and 0 states of the data in the register N.

FIG. 10 is a flowchart showing details of the stopwatch processing in this embodiment. First, in step S100, it is determined whether the content of the measurement start / stop flag register FR is 1 or not. Register F
If R is not 1, the lap time is not being measured, and the processing of this flow is terminated without doing anything. Register F
When R is 1, 1/32 second is added to the measured time storage register ST in step S101, and the process proceeds to step S120. In step S120, 1/32 second is added to the data value of the minute hand movement timing detection register LPA. Next, in step S121, it is determined whether or not the register FAS is 0. If the register FAS is not 0, the process proceeds to step S13.
Branch to 2. If the register FAS is 0, it is checked in step S122 whether the mode is a mode for displaying the standard lap time on the minute hand or a mode for displaying the lap time of the measurement target on the minute hand. When the register N is not 1, that is,
If the mode is a mode in which the standard lap time is displayed on the minute hand, it is determined in a step S123 whether or not the register LTB is not 0. That is, the register L for setting the standard lap time
It is determined whether TB is not 0. If the register LTB is 0, the flow branches to the step S132, and the register LTB
If the value of the register L is not 0, the process proceeds to step S124.
It is determined whether or not the value of the data of PA is greater than or equal to 1/180 of the value of the data of the register LTB. If the value is smaller, the process branches to step S132. If the value is larger or equal, in step S125, 1/180 of the data value of the register LTB is subtracted from the data value of the register LPA, and the process proceeds to step S129.
On the other hand, if the register N is 1 in step S122, that is, if the mode is a mode in which the last lap time to be measured is displayed on the minute hand, the register LTA is set in step S126.
Is not 0. That is, it is determined whether or not the register LTA storing the previous lap time is not 0. If the value of the register LTA is 0, the above-mentioned step S132
And the value of the register LTA is not 0, that is,
If a lap has been taken once after the start of measurement, it is determined in step S127 whether the data value of the register LPA is greater than or equal to 1/180 of the data value of the register LTA. If it is smaller, the process branches to step S132. If it is larger or equal, in step S128, 1/180 of the data value of the register LTA is subtracted from the data value of the register LPA, and the process proceeds to step S129. In step S129, 1 is added to the value of the minute hand movement position storage register ANP. Next, in step S130, it is determined whether or not the position of the minute hand points to the position of 12:00. If the position of the minute hand points to the position of 12:00, the value of the minute hand movement position storage register ANP is returned to 0 in step S131. Then, the process proceeds to step S132. If the position of the minute hand does not point to the position at 12 o'clock, the process immediately proceeds to step S132.

In step S132, it is determined whether or not the lap number storage register I is larger than twelve.
Is not larger than 12, the flow branches to step S134. If the value of the register I is greater than 12, the value 12 of the register I is subtracted from the value of the register I in step S133 in order to make the number of laps 13 to 20 displayed by the hour hand correspond to 1:00 to 10:00. Then, step S
At 134, the value of the register I is multiplied by 15 and set in the register BNP in order to calculate the number of steps for displaying each time position, taking into account that one turn of the hour hand is 180 steps. Then, the stopwatch processing ends.

FIG. 11 is a flowchart showing details of the stopwatch motor driving process in this embodiment. In this process, steps S31 to S3 in FIG.
5 is omitted because it is not necessary. Others are the same as those shown in FIG. In this embodiment, the hour hand and the minute hand are configured to be driven by separate motors. However, even when the rotation of the minute hand is transmitted to the hour hand via the wheel train mechanism, the number of laps can be displayed at the position of the hour hand. Become like

[0047]

As described above in detail, according to the present invention, it is possible to display an indication of the measurement time point of the next lap of the measurement object, and to display the movement time of the measurement object and the standard lap time. Can be known. Therefore, it is possible to easily know how fast or slow the standard lap time is, and to obtain a very convenient stopwatch device.

[Brief description of the drawings]

FIG. 1 is a block diagram showing a main part of a stopwatch device according to the present invention.

FIG. 2 is a diagram showing a configuration of a RAM.

FIG. 3 is a general flowchart showing an outline of the operation of the stopwatch device of the present invention.

FIG. 4 is a flowchart showing details of a watch mode motor driving process of FIG. 3;

FIG. 5 is a flowchart showing details of the key processing of FIG. 3;

FIG. 6 is a flowchart showing details of a stopwatch process of FIG. 3;

FIG. 7 is a flowchart showing details of a stopwatch mode motor driving process of FIG. 3;

FIG. 8 is a schematic diagram illustrating a measurement example in a stopwatch mode.

FIG. 9 is a flowchart showing details of key processing according to another embodiment of the present invention.

FIG. 10 is a flowchart showing details of a stopwatch process in another embodiment of the present invention.

FIG. 11 is a flowchart illustrating details of a stopwatch motor driving process according to another embodiment of the present invention.

[Explanation of symbols]

 1 MPU 2 RAM 3 Key input unit 6 Display drive circuit 7 Digital display unit 12 minute hand 15 hour hand

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int. Cl. ⁷ , DB name) G04F 10/00 G04F 8/02

Claims (4)

(57) [Claims] 1. At least first and second hands, time measuring means for starting a measuring operation when a start switch is operated to obtain measured time data, and measuring time data obtained by the time measuring means. Measurement time data display means for displaying, standard lap time data setting means for setting standard lap time data, a lap switch, and a lap switch when the lap switch is operated during the measurement operation of the time measurement means. Lap time data measuring means for obtaining measured lap time data from the time of operation to the time of the current operation of the lap switch; and the first pointer is rotated one round based on the measured lap time data obtained by the lap time data measuring means. The second finger based on standard lap time data set by the first pointer drive control means to be operated and the standard lap time data setting means. A stopwatch device comprising: a second pointer drive control means for making the hand make one revolution. 2. The stopwatch device according to claim 1, further comprising clock display control means for displaying a time using said first and second hands. 3. A pointer, a time measuring means for starting a measuring operation when a start switch is operated to obtain measured time data, a standard lap time data setting means for setting standard lap time data, a lap switch, When the lap switch is operated during the measuring operation of the time measuring means, lap time data measuring means for obtaining measured lap time data from the previous operation of the lap switch to the current operation of the lap switch; Data selection means for selecting one of time data and the standard lap time data; and when the measurement lap time data is selected by the data selection means, the pointer is rotated one round based on the measurement lap time data. When the standard lap time data is selected, the pointer is rotated one round based on the standard lap time data. A stopwatch device comprising: 4. The stopwatch device according to claim 3, further comprising clock display control means for displaying time with said hands.